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GET
/
book
Get order book
curl --request GET \
  --url https://clob.polymarket.com/book
{
  "market": "0x1234567890123456789012345678901234567890",
  "asset_id": "0xabc123def456...",
  "timestamp": "1234567890",
  "hash": "a1b2c3d4e5f6...",
  "bids": [
    {
      "price": "0.45",
      "size": "100"
    },
    {
      "price": "0.44",
      "size": "200"
    }
  ],
  "asks": [
    {
      "price": "0.46",
      "size": "150"
    },
    {
      "price": "0.47",
      "size": "250"
    }
  ],
  "min_order_size": "1",
  "tick_size": "0.01",
  "neg_risk": false,
  "last_trade_price": "0.45"
}

Documentation Index

Fetch the complete documentation index at: https://docs.polymarket.com/llms.txt

Use this file to discover all available pages before exploring further.

Query Parameters

​
token_id
string
required

Token ID (asset ID)

Response

Successfully retrieved order book

​
market
string
required

Market condition ID

Example:

"0x1234567890123456789012345678901234567890"

​
asset_id
string
required

Token ID (asset ID)

Example:

"0xabc123def456..."

​
timestamp
string
required

Timestamp of the order book snapshot

Example:

"1234567890"

​
hash
string
required

Hash of the order book summary

Example:

"a1b2c3d4e5f6..."

​
bids
object[]
required

List of bid orders (sorted by price descending)

​
asks
object[]
required

List of ask orders (sorted by price ascending)

​
min_order_size
string
required

Minimum order size

Example:

"1"

​
tick_size
string
required

Minimum price increment (tick size)

Example:

"0.01"

​
neg_risk
boolean
required

Whether negative risk is enabled for this market

Example:

false

​
last_trade_price
string
required

Last trade price

Example:

"0.45"